Home / 1,157.62-1,736.40-291.92

Finding the Fourth Proportional to 1,157.62, 1,736.40 and 291.92

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Solution

The fourth proportional to 1,157.62, 1,736.40 and 291.92 is: 437.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.62 : 1,736.40 = 291.92 : x
  2. Step 2: Convert to fraction form
    1,157.62/1,736.40 = 291.92/x
  3. Step 3: Cross multiply
    1,157.62x = 1,736.40 × 291.92
  4. Step 4: Simplify right side
    1,157.62x = 506,889.89
  5. Step 5: Solve for x
    x = 506,889.89/1,157.62
  6. Step 6: Final answer
    x = 437.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.